The Atom Vest delivers lightweight performance and durable warmth. Resilient Coreloft Compact 60 synthetic insulation provides thermal efficiency, is highly compressible, remains warm when wet, and retains loft, even after repeated packing and unpacking. Stretch fleece side panels ensure full mobility and enhance ventilation. Tyono 20 air-permeable fabric with a DWR coating helps to regulate airflow, ensuring wind resistance and repelling excess moisture. An insulated, fleece-lined mid-height collar offers additional warmth and layers well with other tops. Zip secure hand and chest pockets allow storage for small essentials, and the entire vest packs down into its own pocket for easy carrying. A versatile essential for any outdoor enthusiast, this vest will see you from season to season, year after year.